Adjective tautological has 1 sense
  1. pleonastic, redundant, tautologic, tautological - repetition of same sense in different words; "`a true fact' and `a free gift' are pleonastic expressions"; "the phrase `a beginner who has just started' is tautological"; "at the risk of being redundant I return to my original proposition"- J.B.Conant
    Antonym: concise (indirect, via prolix)
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